Home / 3,945,816.72-5,915,170.68-1,419,694.56

Finding the Fourth Proportional to 3,945,816.72, 5,915,170.68 and 1,419,694.56

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Solution

The fourth proportional to 3,945,816.72, 5,915,170.68 and 1,419,694.56 is: 2,128,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945,816.72 : 5,915,170.68 = 1,419,694.56 : x
  2. Step 2: Convert to fraction form
    3,945,816.72/5,915,170.68 = 1,419,694.56/x
  3. Step 3: Cross multiply
    3,945,816.72x = 5,915,170.68 × 1,419,694.56
  4. Step 4: Simplify right side
    3,945,816.72x = 8,397,735,635,867.50
  5. Step 5: Solve for x
    x = 8,397,735,635,867.50/3,945,816.72
  6. Step 6: Final answer
    x = 2,128,262.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.